Rotary brush.



w. sToRK. ROTARY BRUSH. APPLIOATIO FILED JUNE 28, 1912.

Patented yoon. 8, 1912.

' a boiler,

be. readily luseful improvementsy rr c.

WILLIAM STRK, 0F SAN DIEGO, CALIFORNIA.

ROTARY BRUSH.

Apbucati'on med June 2s,

To all whm'it moycohcem:

'Belit known' that 'I,.WI'LL1AM" Sioux, a

citizen 0f/the 'United States, residing at SanDiegd in the Vcountyof'San Diego Vand State of lali fornia,l have, invented cert'ain new anduseful Improvements in-Rotary Brushes, :of which the following is aspeci- `fcation. u l

My'invent-ion nelates to vcertainv new and in" 'rot-ary brushes adaptedto bei secured to. the end of a flexible shaft-or the like, whereby thebrush may be inserted in 'the various places that it is desired 'toclean, such for instance as the cylinder' of a .gasoiother engine, tluesof or other` places where deposits ac-` cumulate.

A further object of my invention is topro- .vide'a device'of. thecharacter referred to inwhich. thewirs forming the bristles can and'expeditiously replaced when' and 'also to'provide a device which shall`he sim le and eiicint 4in operation.

With these and other objects in View my invention'consists in certainconstructions, combinations and l arrangements of parts the broken,

`preferred-form of which will be first de- Scrbed'in connection withthe'aocompanying drawings and then the invention particularly pointed'out in the appended claim.

:Referring to,4thel drawings` wherein the same part is designated'by thesame ref! erence numeral 'whereverH-it* occurs, Figure showing myinvei'xtioli inserted through the spark plug opening ofthe cylinder ofan automobile so thatthecylinder may be cleaned; Fig. 2 is an enlargedperspective view of the brush and flexible" shaft, with a vthe arrow.

15 designatesa motor which may be of any desired type and suitablyIsupported, as, fo`1 instance on a vbracket 6. To the motor isV:connected the shaftf, which may be of any 'desired character, and forthe sake of illus` tration-is shown as flexible, and this shaft ,iscomposed of an inner rotating section 8,

and a'n outer cover 9 as is common in iiexible shafts.v It 1s to beunderstood', however,

. Specification o'f Letters Patent.

l is a' perspective View, partly broken away, i

.Patented Oct. 8, 1912.- 1912. Serial No. 706,360.

-f'lexible shaft may be The parts so fai' of my invention.

provided on one end gthat'a solid or non substituted if desired.`described form no part l0 designates a ring with a circular groove 11,from :which extend the pairs of'bores 12, into which are placed the U-'o1-hair-pinsl1aped wires 143, ,'with the base of each wire inthe groove1'1. Preferably, and as shown, the.`outer ends ofthese wires are bentoutwardly, as shown at 14, so that the ends will b'etterengage thesides'of 'the construct-ion which it is de` 'sired to clean. Theinterior of the ring is threaded, land into this threaded'portionisscrewed the sleeve 15, which .has at one end the collar 1G adapted totextend vover the end of the ring covering the groove l1 and securingthe wires 4in position'in the ring. The sleeve `15' is centrally boredand preferably screw-tlneaded as shown, in order to be engaged 'hy thethreaded endet` ythe shaft 8.

'the cylinders of a gas engine, said engine cylinder being'indicated atl in'Fig. l, the spark plugneed only 'be removed "and my device insertedtherein and the motor started' rapidly revolving. The wlres 13 are ofsuch `sir/,e that under l-the rapid rotation of the brush they willspread outr'slightly, so that by moving the device around in thecylinder the deposits' on the `inside thereof canbe rapidly cutI fromthel surface. It ,is tobe understood that-the wires 13 are so made asnotl to be hard enough to scratch the surface operated up'on.

I'claim as new and desire to secure by LettersPatent is:

The combination with a' ringhaving pairs 'of openingsextendingtherethrough, of U# ing a collarextending over o ne end of the rlng andsecuring the wires 1n posltion.

Bono Minnen, lV. B. donnees'.

In the use of my invcniion, .when it is' deslred .to clean for instancethe interior of Having thus described lny invention what.`

In testimony whereof I aflix my signature- `shaped wires passedthrouglrthe openings, 1 a sleeve secured in the ring', said sleeve. 'hav

